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Flow Chart of Troubleshooting
9-2-3. PCS Rx
CONTINOUS RX ON
RF INPUT : 660CH
AMP : -50dbm
Normal condition
catch the
channel ?
Yes
Check U100
pin 12 ≥ -65
dbm ?
Yes
Check U100
pin 20 ≥ -65
dbm ?
Yes
Check U101
pin 17,18 ≥ -
65dBm ?
Yes
Check U101
pin 13 = 2.9V
Yes
Resolder or change
UCP201
No
Check ANT,
No
Resolder or change
RFS601, C110,L106,L103,L104
No
Resolder or change
No
Resolder or change
F102,C114,C117,L109
No
Resolder or change
9-14
R102, R105, R135
U100
UCP300
1
2
3
4
5
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